Cannot socket 'Heavy Swing' support into 'Staggering Palm' melee attack gem

Bug Report ID: #428714194

Cannot socket 'Heavy Swing' support into 'Staggering Palm' melee attack gem

Heavy Swing states it supports 'Melee Attacks', and Staggering Palm is an attack with the melee tag.

And you don't have Heavy Swing socketed in any other skill?

After checking for myself, it seems that supports that "Support Melee Attacks" in general don't work with Staggering Palm. This includes other supports like Bloodlust or Rage.

However, supports that "Support Attacks" do work with Staggering Palm, such as Martial Tempo or Untouchable.